{"id":48756,"date":"2023-04-21T23:01:12","date_gmt":"2023-04-22T04:01:12","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-an-ac-generator\/"},"modified":"2025-01-21T07:17:39","modified_gmt":"2025-01-21T12:17:39","slug":"how-to-make-an-ac-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/how-to-make-an-ac-generator\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ebf t\u1ea1o m\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u"},"content":{"rendered":"<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u (AC) l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i, bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n xoay chi\u1ec1u.  Vi\u1ec7c hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n AC \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta \u0111\u00e1nh gi\u00e1 cao h\u01a1n t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch t\u1ef1 l\u00e0m m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n AC \u0111\u01a1n gi\u1ea3n.<\/p>\n<h3>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/h3>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb c\u1ee7a Faraday. Khi m\u1ed9t cu\u1ed9n d\u00e2y d\u1eabn quay trong m\u1ed9t t\u1eeb tr\u01b0\u1eddng, t\u1eeb th\u00f4ng qua cu\u1ed9n d\u00e2y thay \u0111\u1ed5i, t\u1ea1o ra m\u1ed9t s\u1ee9c \u0111i\u1ec7n \u0111\u1ed9ng c\u1ea3m \u1ee9ng.  S\u1ee9c \u0111i\u1ec7n \u0111\u1ed9ng n\u00e0y l\u00e0m xu\u1ea5t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u trong cu\u1ed9n d\u00e2y.<\/p>\n<h3>V\u1eadt li\u1ec7u c\u1ea7n chu\u1ea9n b\u1ecb<\/h3>\n<p>\u0110\u1ec3 ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n AC \u0111\u01a1n gi\u1ea3n, b\u1ea1n c\u1ea7n chu\u1ea9n b\u1ecb nh\u1eefng v\u1eadt li\u1ec7u sau:<\/p>\n<ul>\n<li>Nam ch\u00e2m v\u0129nh c\u1eedu: Cung c\u1ea5p t\u1eeb tr\u01b0\u1eddng.<\/li>\n<li>Cu\u1ed9n d\u00e2y \u0111\u1ed3ng: N\u01a1i xu\u1ea5t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n c\u1ea3m \u1ee9ng.<\/li>\n<li>Tr\u1ee5c quay: \u0110\u1ec3 quay cu\u1ed9n d\u00e2y trong t\u1eeb tr\u01b0\u1eddng.<\/li>\n<li>V\u00f2ng tr\u01b0\u1ee3t v\u00e0 ch\u1ed5i than: \u0110\u1ec3 d\u1eabn \u0111i\u1ec7n t\u1eeb cu\u1ed9n d\u00e2y quay ra ngo\u00e0i.<\/li>\n<li>\u0110\u1ebf g\u1ed7 ho\u1eb7c nh\u1ef1a: \u0110\u1ec3 c\u1ed1 \u0111\u1ecbnh c\u00e1c b\u1ed9 ph\u1eadn.<\/li>\n<li>D\u00e2y n\u1ed1i \u0111i\u1ec7n.<\/li>\n<li>\u0110\u00e8n LED nh\u1ecf (t\u00f9y ch\u1ecdn): \u0110\u1ec3 ki\u1ec3m tra d\u00f2ng \u0111i\u1ec7n.<\/li>\n<\/ul>\n<h3>C\u00e1c b\u01b0\u1edbc th\u1ef1c hi\u1ec7n<\/h3>\n<ol>\n<li>\n<p><strong>Qu\u1ea5n cu\u1ed9n d\u00e2y:<\/strong> Qu\u1ea5n d\u00e2y \u0111\u1ed3ng nhi\u1ec1u v\u00f2ng quanh m\u1ed9t khung h\u00ecnh ch\u1eef nh\u1eadt ho\u1eb7c tr\u00f2n. S\u1ed1 v\u00f2ng d\u00e2y c\u00e0ng nhi\u1ec1u th\u00ec \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra c\u00e0ng cao.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1eafp r\u00e1p tr\u1ee5c quay:<\/strong> C\u1ed1 \u0111\u1ecbnh cu\u1ed9n d\u00e2y v\u00e0o tr\u1ee5c quay sao cho n\u00f3 c\u00f3 th\u1ec3 quay t\u1ef1 do trong t\u1eeb tr\u01b0\u1eddng c\u1ee7a nam ch\u00e2m.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1eb7t nam ch\u00e2m:<\/strong> \u0110\u1eb7t nam ch\u00e2m v\u0129nh c\u1eedu sao cho cu\u1ed9n d\u00e2y khi quay s\u1ebd c\u1eaft c\u00e1c \u0111\u01b0\u1eddng s\u1ee9c t\u1eeb c\u1ee7a nam ch\u00e2m. C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng hai nam ch\u00e2m \u0111\u1ed1i di\u1ec7n nhau \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1eafp \u0111\u1eb7t v\u00f2ng tr\u01b0\u1ee3t v\u00e0 ch\u1ed5i than:<\/strong> G\u1eafn v\u00f2ng tr\u01b0\u1ee3t v\u00e0o tr\u1ee5c quay v\u00e0 k\u1ebft n\u1ed1i v\u1edbi hai \u0111\u1ea7u d\u00e2y c\u1ee7a cu\u1ed9n d\u00e2y.  Ch\u1ed5i than \u0111\u01b0\u1ee3c \u0111\u1eb7t ti\u1ebfp x\u00fac v\u1edbi v\u00f2ng tr\u01b0\u1ee3t \u0111\u1ec3 d\u1eabn \u0111i\u1ec7n ra ngo\u00e0i.<\/p>\n<\/li>\n<li>\n<p><strong>K\u1ebft n\u1ed1i m\u1ea1ch \u0111i\u1ec7n:<\/strong>  N\u1ed1i d\u00e2y \u0111i\u1ec7n t\u1eeb ch\u1ed5i than \u0111\u1ebfn \u0111\u00e8n LED (n\u1ebfu s\u1eed d\u1ee5ng) ho\u1eb7c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c \u0111\u1ec3 ki\u1ec3m tra d\u00f2ng \u0111i\u1ec7n.<\/p>\n<\/li>\n<li>\n<p><strong>Ki\u1ec3m tra:<\/strong> Quay tr\u1ee5c quay b\u1eb1ng tay ho\u1eb7c b\u1eb1ng m\u1ed9t \u0111\u1ed9ng c\u01a1 nh\u1ecf. N\u1ebfu m\u00e1y ph\u00e1t \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng, \u0111\u00e8n LED s\u1ebd s\u00e1ng ho\u1eb7c thi\u1ebft b\u1ecb \u0111i\u1ec7n s\u1ebd ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/li>\n<\/ol>\n<h3>B\u1ea3ng so s\u00e1nh c\u00e1c lo\u1ea1i nam ch\u00e2m<\/h3>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Lo\u1ea1i nam ch\u00e2m<\/th>\n<th>C\u01b0\u1eddng \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng<\/th>\n<th>Gi\u00e1 th\u00e0nh<\/th>\n<th>\u0110\u1ed9 b\u1ec1n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nam ch\u00e2m Ferrite<\/td>\n<td>Th\u1ea5p<\/td>\n<td>R\u1ebb<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m Neodymium<\/td>\n<td>Cao<\/td>\n<td>\u0110\u1eaft h\u01a1n<\/td>\n<td>Trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>Nam ch\u00e2m Alnico<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Trung b\u00ecnh<\/td>\n<td>Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1<\/h3>\n<p>N\u1ebfu m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng, h\u00e3y ki\u1ec3m tra l\u1ea1i c\u00e1c k\u1ebft n\u1ed1i d\u00e2y, \u0111\u1ea3m b\u1ea3o cu\u1ed9n d\u00e2y quay \u0111\u00fang trong t\u1eeb tr\u01b0\u1eddng v\u00e0 ch\u1ed5i than ti\u1ebfp x\u00fac t\u1ed1t v\u1edbi v\u00f2ng tr\u01b0\u1ee3t.<\/p>\n<p>Vi\u1ec7c t\u1ef1 ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n AC \u0111\u01a1n gi\u1ea3n kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb m\u00e0 c\u00f2n kh\u01a1i d\u1eady ni\u1ec1m \u0111am m\u00ea kh\u00e1m ph\u00e1 khoa h\u1ecdc.  M\u1eb7c d\u00f9 m\u00e1y ph\u00e1t \u0111i\u1ec7n t\u1ef1 ch\u1ebf c\u00f3 c\u00f4ng su\u1ea5t nh\u1ecf, nh\u01b0ng n\u00f3 l\u00e0 m\u1ed9t minh ch\u1ee9ng tuy\u1ec7t v\u1eddi cho s\u1ef1 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n.  Hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 cung c\u1ea5p cho b\u1ea1n nh\u1eefng ki\u1ebfn th\u1ee9c h\u1eefu \u00edch v\u00e0 th\u00fa v\u1ecb.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n xoay chi\u1ec1u (AC) l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i, bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n xoay chi\u1ec1u. Vi\u1ec7c hi\u1ec3u r\u00f5 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1ch ch\u1ebf t\u1ea1o m\u1ed9t m\u00e1y ph\u00e1t \u0111i\u1ec7n AC \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta \u0111\u00e1nh gi\u00e1 cao<\/p>\n","protected":false},"author":1,"featured_media":26946,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-48756","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/48756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/comments?post=48756"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/48756\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/26946"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=48756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=48756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=48756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}